15=-7-m

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Solution for 15=-7-m equation: 


Simplifying
15 = -7 + -1m

Solving
15 = -7 + -1m

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add 'm' to each side of the equation.
15 + m = -7 + -1m + m

Combine like terms: -1m + m = 0
15 + m = -7 + 0
15 + m = -7

Add '-15' to each side of the equation.
15 + -15 + m = -7 + -15

Combine like terms: 15 + -15 = 0
0 + m = -7 + -15
m = -7 + -15

Combine like terms: -7 + -15 = -22
m = -22

Simplifying
m = -22

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